May 26, 1906

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Features

Conditions of the Rapid Transit Tunnel

Directed Wireless Telegraph Messages

Efficiency of the American Locomotive

The Manufacture of Turpentine

A New and Cheap Process for Generating Hydrogen

A Russian Gasoline-Electric Train

The Art of Piano Making--II

An Automobile School

The Lorimer Automatic Telephone

Pennsylvania Railroad's Terminal Station, New York City

The Laocon Group as it Ought to be

The New Vickers-Maxim 12-Inch Breech-Loading Wire-Wound Gun

By the English correspondent of the scientific American

Business and Personal Wants - May 26, 1906

Departments

Departments

Recently Patented Inventions - May 26, 1906

New Books, Etc. - May 26, 1906

Notes and Queries - May 26, 1906

Index of Inventions - May 26, 1906

Patents - May 26, 1906

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